Oo, normal yan, lalo na during pregnancy or after giving birth dahil sa hormones! A few of us moms noticed random dark spots na biglang lumilitaw then fade away, especially on the face or body, usually okay lang yan at walang alalahanin. But since you're a first-time mommy and gusto mo sure, mas better pa rin i-check with your OB or derma para ma-peace of mind mo, especially if marami or lumalaki pa, they'll know better kung ano exactly ang nangyayari sa skin mo.